Presentation by San Antonio Water System (SAWS)
Post-Treatment of RO Permeate with Calcite Contact to Provide Stability and Corrosion Control
Reverse osmosis (RO) permeate is aggressive, corrosive since it is soft, low alkalinity water with slightly acidic pH. Unless properly post-treated, finished water from RO facilities can cause corrosion to downstream fixtures and piping including the distribution system. Post-treatment includes chemical addition to adjust water quality. Blending a ...